Preprocessor:
- Added method "setPTHManager" that will be called by the driver to install
a PTHManager for the Preprocessor.
- Fixed some comments.
- Added EnterSourceFileWithPTH to mirror EnterSourceFileWithLexer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60437 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PPLexerChange.cpp b/lib/Lex/PPLexerChange.cpp
index 5129d58..bb2536d 100644
--- a/lib/Lex/PPLexerChange.cpp
+++ b/lib/Lex/PPLexerChange.cpp
@@ -75,6 +75,16 @@
MaxIncludeStackDepth = IncludeMacroStack.size();
#if 1
+ if (PTH) {
+ PTHLexer* PL =
+ PTH->CreateLexer(FileID, getSourceManager().getFileEntryForID(FileID));
+
+ if (PL) {
+ EnterSourceFileWithPTH(PL, CurDir);
+ return;
+ }
+ }
+
Lexer *TheLexer = new Lexer(SourceLocation::getFileLoc(FileID, 0), *this);
EnterSourceFileWithLexer(TheLexer, CurDir);
#else
@@ -149,8 +159,8 @@
#endif
}
-/// EnterSourceFile - Add a source file to the top of the include stack and
-/// start lexing tokens from it instead of the current buffer.
+/// EnterSourceFileWithLexer - Add a source file to the top of the include stack
+/// and start lexing tokens from it instead of the current buffer.
void Preprocessor::EnterSourceFileWithLexer(Lexer *TheLexer,
const DirectoryLookup *CurDir) {
@@ -172,7 +182,27 @@
}
}
+/// EnterSourceFileWithPTH - Add a source file to the top of the include stack
+/// and start getting tokens from it using the PTH cache.
+void Preprocessor::EnterSourceFileWithPTH(PTHLexer *PL,
+ const DirectoryLookup *CurDir) {
+
+ if (CurPPLexer || CurTokenLexer)
+ PushIncludeMacroStack();
+ CurDirLookup = CurDir;
+ CurPTHLexer.reset(PL);
+ CurPPLexer = CurPTHLexer.get();
+
+ // Notify the client, if desired, that we are in a new source file.
+ if (Callbacks) {
+ unsigned FileID = CurPPLexer->getFileID();
+ SrcMgr::CharacteristicKind FileType =
+ SourceMgr.getFileCharacteristic(CurPPLexer->getFileID());
+ Callbacks->FileChanged(SourceLocation::getFileLoc(FileID, 0),
+ PPCallbacks::EnterFile, FileType);
+ }
+}
/// EnterMacro - Add a Macro to the top of the include stack and start lexing
/// tokens from it instead of the current buffer.